Answer:
± 0.0736
Step-by-step explanation:
Data provided in the question:
randomly chosen graduates of California medical schools last year intended to specialize in family practice, p = = 0.4
Confidence level = 90%
sample size, n = 120
Now,
For 90% confidence level , z-value = 1.645
Width of the confidence interval = ± Margin of error
= ±
= ±
= ± 0.07356 ≈ ± 0.0736
Hence,
The correct answer is option ± 0.0736
Answer:
2+2=4
Step-by-step explanation:
add 2 to 2 and you get 4
Use Heron's Formula:
s means semi-perimeter = (50 + 31 + 18) / 2 = 99 / 2 =
49.5
area = sq root [(s * (s-a) * (s-b) * (s-c)]
area = sq root [(49.5 * (s-a) * (s-b) * (s-c)]
This will NOT form a triangle. The longest side (50) is greater than the sum of the other 2 sides.
Source:
http://www.1728.org/trianinq.htm
Answer:
try (
−
4
,
∞
)
Step-by-step explanation:
The ratio of red ribbon to blue ribbon is 9:8. The ratio of blue ribbon to red ribbon is 8:9.
The first step is to get the fraction to the same denominators.
3/4 becomes 9/12
2/3 becomes 8/12
Then, just compare the numerators.